Complete your setup
Choose only what your project needs. Optional supplies are not included unless stated.
Select a model above to see its matching recommendations. For other options, ask us to confirm fit.
What you already have
IWS-1040S is the large-gauge crimper option for the listed 1/0, 2/0, 3/0 and 4/0 copper-lug applications.
Check before adding The AWG 8–1/0 lug assortment is not a full-range refill for this tool. No such assortment is recommended here. IWS-0801C is a different option and needs a separate fit check.

Cable preparation for the listed AWG 12–4/0 range. Set blade depth for the insulation and avoid damaging strands.
$7.99 USD Check item detailsSelected supplies total:
No additional bundle discount is applied by this offer. Any eligible existing offers are calculated in your cart.For your next project
For repeat cable work, send your cable gauge, lug barrel and stud size for a supply recommendation. A stripper is optional if you already own a suitable one.
About this item
- Ergonomic Design: Anti-slip rubber coated handle for a more comfortable and saving labor work.
- Crimp Capacity: The tool works for 1/0, 2/0, 3/0, 4/0AWG cable lugs and built-in dies eliminate loose pieces and speed up crimping process.
- Dies: Polished & tempered dies for increased durablity and corrosion resistance.
- Durable: Crimper is made of SCM-40 hardened steel for a durable and long service life use.
- High Precision Jaw Design: Crimper with high precision jaw ensure a tightly connection after crimping with strong work pressure. This tool has widely application in automatic electronics work.
This heavy duty mechanical crimp tool is more cost-effective than battery tool and safer than hydraulic tool. Middle-sized tool has big crimping capability. Easy storage tool is suitable for both indoor and outdoor operations.
- Loose parts free heavy duty crimp tool.
- Low MRO rate mechanical crimp tool.
- Crimps AWG 1/0 through AWG 4/0 cable lugs as easy as hydraulic tools.
- The compact design allows for easy storage and handling.
- Designed for 1/0 gauge to 4/0 gauge die cast copper battery terminals and copper lugs.
Know your tool. Choose with confidence.
Specialists in connection tools
Part of the IWISS family, iCrimp focuses on cable and pipe connection tools, backed by in-house design and manufacturing expertise.
Meet iCrimpGet help matching your application
Send your terminal or fitting part number, size and a photo. Our team can help you check the tool selection before you order.
Email product supportClear support after purchase
Find shipping information, return conditions and warranty terms before buying. Keep your order number and tool model for support.
Returns & warranty terms · Shipping detailsDesign standards & application compatibility
Check the exact model, connection type and applicable standard before ordering. A standard referenced in a product description is not, by itself, evidence of third-party certification. Ask us for model-specific documentation if your project requires it.
Design references are not third-party product certifications. Use the model specifications and the fitting or terminal manufacturer's instructions to confirm compatibility.
How manufacturing supports reliability
IWISS manufacturing capabilities include precision machining, heat treatment, assembly and quality inspection, with dimensional measurement and tensile-testing equipment. The inspection method and acceptance criteria depend on the tool and connection application.
Ask us about the specifications or supporting documentation for your model.
Manufacturing & innovationNeed technical documents?
For instructions, compatibility details or available test documentation, email the model number and your application to sales@iwiss.com.
Battery cable and lug matching
Select the cable, lug barrel and crimping die as a matched combination.
Before ordering
- Check conductor gauge and construction alongside lug material and barrel dimensions.
- Follow the connector's specified die, crimp positions and inspection procedure.
Are 4 AWG and 4/0 AWG the same?
No. 4/0 AWG is larger than 4 AWG. Read the exact size marking and do not treat slash-zero sizes as ordinary single-digit gauges.
What should I send for a fit check?
Send the product model, cable or pipe size, connector or fitting part number, and clear photos. Include the intended application so our team can help you identify the appropriate setup.